Automobile-tire.



J. HCl/Sl AUTOMBILE TIRE.

APPLscA'rmN FILED SEPT. n2, me.

1 ,223,049. l Patented Apr, 17', 1917.

, `i A. still furtherobject of my invention is' sTATEs PATENT oFFICn CLIE I. HICKS, or CEIiITEItBUItG, 0310.

AUTOMOBILE-TIRE. l

2i ,haa

l. 'may concern.'

Be'itlfiwn that I, OLIE J. HICKS, a citi- '.zen of the United States, 'residing at Centere burg, in the cpunty of Knox and State of v`I Ohio, have invented certain new and useful 'Improvements in Automobile-Tires, of

which the following is a specification.

My invention .relates .to new and useful ,f i improvements in tires anrrilmore particularly intubeless tires, the pri kary ob-ject of my invention beingthe provision of a resilient core adapted to be inclosed within the usual casing or shoel now employed with pneumatic tubes inV order to do away with the use of such tubes.

A "still further object of my invention is to so construct the'core that it may be readily applied to or removed from the casing o r changed from one casing to another. l

'tito construct a core lof the above described aracte `l f "etivelyqhard, rigid base to engage the rimof the vifheel and to so arrange this base as to permit ready application of the tire and caslIngfto.rims-of al1 types. l, i Wlith 4these and other objects in view, my invention will be more fully described, illustrated in the accompanying drawings and then'specically pointed out in'the claims which'y are attached to and form a part of,

-this application.

In the drawings: 1 Figure 1 is a sectional perspective view of my improved core in a casing;y

Fig; 2 is a corresponding view of a core removed from the casing. Corresponding and like lparts'are referred to in the followin description and indicated in all, the views o the drawings bythe same so, reference characters.

understanding of my invention, I'have illustrated it in connection with a casing or shoe 10, such as is ordinarily employed as a rotection for pneumatic tubes, this casmg 55 Including the usual fabricplies 11 covered Specification of Iietters rPatent.

y l in which suit-able .provision is *made'.forfcirculation of air to prevent hea-ti A"""s.till further Object of my invention con- 4'sists constructing the core with a relaorder torinsure al clear and accurate Patented Apr. 17, 1917.

a Applicationled September 12, 1916. Serial No. 119,712.

with theusual read 12 of rubber or rubber composltlon, the fabric plies inclosing beads 13 Whlch, in thi` present instance, are shown of thequick detachable type.

My nnproved core is indicated as a whole 'I by the numeral 14 and, broadly speaking, is ofamshape and proportion to, with the ex-` ception of certain air circulating passages, completely fill the s ace Within the casing and between it and t e rim when the casing 1s applied tothe rim'. In other words, the core is annular and substantially circular in cross section being formed with an inwardly directed radial ind annular base portion to seat between the Vbeads of the casing and to engage against the rim. This core is formed with an annular passage or chamber 15, preferably circular in cross section, and disposed centra'... L )f the width of the core and adjacent its outer peripheral portion. The core is further formed with a second annular chamber or passage 16 circular in cross-section and located centrally of ,the width of the core and a little above 'the line of the' upper inner portions of the casing beads.

.Fui-thermom, tIe core, at each side, is. 'formed with gr )oves or channelsv17 which,

when the core is mounted in the casing,

at either side of the casing and immediately above the beads thereof` These various passages aford a fr ae circulation of air through the tire to prevent heating and also afford a certain amount )f resiliency. Furthermore, the outermost ci amber 15 allows the central portion of the tire to Hatten, in use, to increase the area of' tire surface engaging the ground and thun increase the tractive force of the tire and a so create a pneumatic.` elect.

The outer por tion of the core, to a point substantially midway of the depth of the grooves 17, is formed of soft rubber, while the remainder 0E the core, tota point about centrally of the chamber. 16, is formed of medium hard rubber, these portions being indicated4 by th'e'numerals 19 and 20. The remainder of the core, which is that portionl seating betyvren 1he beads of the casing when the core is l'pfpla :e and which is indicated at ,21, is formed'of hard rubber andthis hard formed intermediate its wi Ith vith a wedgeshaped channel opening inlo Lne chamber 16 and this channel is lled b v a ring of soft rubber 23. 'It will, of course, be understood that all'of these various sections of different grades or qualities of rubber aie secured to each other by vulcanizing or other suitable means so that the core. when finished, is, to all intents and purposes, a one-piece structure.

The soft rubber outer portion 19 of the core gives the necessar)v resiliency and cushionin, r action. while the medium hard rubber intermediate portion 20 properly supports the outer portion of the core and is in turn reinforced b v the wings 22 of the hard rubber base portion which serves to prevent inward movement of the casing beads which might cause release of the tire as a whole lfrom its rim. The annular wedge .23 of sot't rubber, however, permits such compression of the base portion of the core as is necessary to permit the application of the core and its casing to a suitable type of rim.l I

Although I have illustr :ed and described in v invention in all its details of construction, it will of course be understood that I reserve the' rightto malte any changes, within the scope 'of the appended claims, without in. the slightest degree departing from the spirit of my invention.

Having thus described the invention, what is claimed as new is:

1. In` a tire construction,` the combination with an outer casing having rim engaging beads, 'of a resilient core adapted to seatwithin thecasing, the core havin a base portion adapted to seat' bet\'veen tie beads and engage against u wheel rim, said base portion `ing of hard rubber with an intermediate anular strip of softrubber.

In a tire construction, the combination with an outer casing having rim enga-ging beads, of a resilient core adapted to seat withinI the' casing, the coreI having a base portion adapted to seat between the beads and engage against a wheel rim, said base portion being of hard rubber with an inter- `mediate annular strip of soft rubber, the

strip of soft rubber tapering in width from its inner to its outer edge and the core at the outer edge of the strip being formed with an annular chamber. v

3. In altire construction, the combnation with an outer casing having rim en aging beads, of a core shaped to fit with n the casing and formed adjacent its outer peri heral portion with anannular chamber an at either side with annular grooves wliicli,with the casing, provide additional annular-chambers, that portion of the core lying outside of the intermediate portion of the latter chambers being of soft rubber,` that between the inner portions of the latter chambers being of medium hard rubber. and that iuthe last named portion being of lnlrd'rubber,

said latter hard rubber portion having wings extending upwardly along the sides of the medium hard rubber portion.

5. In a tire construction. the-combination with an outer casing having rim engaging beads, of a resilient e' ire adapted to fit within the casing and having the base portion seat-- ing between the beads and adapted to engage 'against a wheel rim. the core adjacent its outer portion bemg formed with an annular chamber and in its inner side portions with .annular grooves w-ich, with the casing. provide annular chambers, and the core further being provided -between the side chambers and immediately above the base portion with an additional annular chamber.

6. In a tire construction, the combination with an outer' casing having rim engaging beads, of a resilient-V core adapted to fit within the casing and having the base portion seating between the beads and adapted to engage against a wheel rim,- tlie core adjacent its outer portion being formed with an annular chamberand in its inner side portions with annular grooves which, with the easing, provide annular chambers, and the core further being providedy between the side Chambers and immediately above the base portion with an additional annular chamber,

'that portion of the base between the rim engaging face and latter chamber being formed of soft rubber, while the remainder of-the base vand lower side walls of the sidechambers are formed of hard rubber and the space between the hard rubber .side walls of the chambers of medium hard rubber and the remainder of the core of soft rubber.

.7. A core adapted to be employed within a tire casing and shaped to tit therein, the outer portion ofthe core being of soft rubber, the intermediate portion of medium hard rubber, and the base portion of hard rubber 4with a soft rubber Awedge. interinadia-te its width and the core being formed Withfradially spaced annular chambers and at its side with chamber providing grooves.

8. A core adapted to be employed within a. tire casing and shaped to t therein, the outer portion of the cone. being of soft rubber? the .intermediate portion of mciediurn hard rubber, and the base portion of hard rubber with a soft rubber wedge intermediate its width and the corel bein formed with radially spaced annular cham rs and atits sides with chamber providing grooves,`

the inner annular chamber being arranged to y permit expansion of the soft rubber wedge into it uponcompression of the base portion of the core. i

9.,A core adapted to be employed within a tire casing andrshaped to ft therein, the

' materialof which the core is made being resilient and increasing inv resiliency from its inner toits outer portion. e

10. A core adapted tov be emplo ed within a tire casing anclmshaped to fit t erein, the A outer portion of l he core being of relatively soft rubber comp isition, and a base portion of relatively baril rubber composition with an annular inser; qf relatively `soft rubber composition.- z

11. A' core adaptedto be employed within a tire 'casing and shaped to :fit therein, the material of the outer-portion of the core being highly resilient, the material of the inner portion or `base beingl slightly resilient, and the material vof the lntermediate portion possessingr a degree of'resiliency less than that of the 4)ase portion. In testimony w hereof I aix my signature.

than that of-the outer portion and greater 30 OLIE J. HICKS.4 [as] A 

